A.2.181 –xtarget=t
Specifies the target platform for instruction set and optimization.
The performance of some programs can benefit by providing the compiler with an accurate description of the target computer hardware. When program performance is critical, the proper specification of the target hardware could be very important. This is especially true when running on the newer SPARC processors. However, for most programs and older SPARC processors, the performance gain is negligible and a generic specification is sufficient.
The value of t must be one of the following: native, generic, native64, generic64, system-name.
Each specific value for -xtarget expands into a specific set of values for the -xarch, -xchip, and -xcache options. Use the -xdryrun option to determine the expansion of -xtarget=native on a running system.
For example, -xtarget=ultraT2 is equivalent to: -xarch=sparcvis2 -xchip=ultraT2 -xcache=8/16/4:4096/64/16.
Note –
The expansion of -xtarget for a specific host platform might not expand to the same -xarch, -xchip, or -xcache settings as -xtarget=native when compiling on that platform.
A.2.181.1 -xtargetValues By Platform
Table A–47 -xtarget Values for All Platforms|
Value |
Meaning |
|---|---|
|
native |
Gets the best performance on the host system. The compiler generates code optimized for the host system. It determines the available architecture, chip, and cache properties of the machine on which the compiler is running. |
|
native64 |
Gets the best performance for 64-bit object binaries on the host system. The compiler generates 64-bit object binaries optimized for the host system. It determines the available 64-bit architecture, chip, and cache properties of the machine on which the compiler is running. |
|
generic |
This is the default value. Gets the best performance for generic architecture, chip, and cache. |
|
generic64 |
Sets the parameters for the best performance of 64-bit object binaries over most 64-bit platform architectures. |
|
system-name |
Gets the best performance for the specified platform. Select a system name from the following lists for which represents the actual system you are targeting. |
-xtarget Values on SPARC Platforms
Compiling for 64-bit Solaris software on SPARC or UltraSPARC V9 is indicated by the -m64 option. If you specify -xtarget with a flag other than native64 or generic64, you must also specify the -m64 option as follows: -xtarget=ultra... -m64 otherwise the compiler uses a 32-bit memory model.
Table A–48 -xtargetExpansions on SPARC Architecture|
-xtarget= |
-xarch |
-xchip |
-xcache |
|---|---|---|---|
|
generic |
generic |
generic |
generic |
|
cs6400 |
v8plusa |
super |
16/32/4:2048/64/1 |
|
entr150 |
v8plusa |
ultra |
16/32/1:512/64/1 |
|
entr2 |
v8plusa |
ultra |
16/32/1:512/64/1 |
|
entr2/1170 |
v8plusa |
ultra |
16/32/1:512/64/1 |
|
entr2/1200 |
v8plusa |
ultra |
16/32/1:512/64/1 |
|
entr2/2170 |
v8plusa |
ultra |
16/32/1:512/64/1 |
|
entr2/2200 |
v8plusa |
ultra |
16/32/1:512/64/1 |
|
entr3000 |
v8plusa |
ultra |
16/32/1:512/64/1 |
|
entr4000 |
v8plusa |
ultra |
16/32/1:512/64/1 |
|
entr5000 |
v8plusa |
ultra |
16/32/1:512/64/1 |
|
entr6000 |
v8plusa |
ultra |
16/32/1:512/64/1 |
|
sc2000 |
v8plusa |
super |
16/32/4:2048/64/1 |
|
solb5 |
v7 |
old |
128/32/1 |
|
solb6 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss1 |
v7 |
old |
64/16/1 |
|
ss10 |
v8 |
super |
16/32/4 |
|
ss10/20 |
v8 |
super |
16/32/4 |
|
ss10/30 |
v8 |
super |
16/32/4 |
|
ss10/40 |
v8 |
super |
16/32/4 |
|
ss10/402 |
v8 |
super |
16/32/4 |
|
ss10/41 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss10/412 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss10/50 |
v8 |
super |
16/32/4 |
|
ss10/51 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss10/512 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss10/514 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss10/61 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss10/612 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss10/71 |
v8 |
super2 |
16/32/4:1024/32/1 |
|
ss10/712 |
v8 |
super2 |
16/32/4:1024/32/1 |
|
ss10/hs11 |
v8 |
hyper |
256/64/1 |
|
ss10/hs12 |
v8 |
hyper |
256/64/1 |
|
ss10/hs14 |
v8 |
hyper |
256/64/1 |
|
ss10/hs21 |
v8 |
hyper |
256/64/1 |
|
ss10/hs22 |
v8 |
hyper |
256/64/1 |
|
ss1000 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss1plus |
v7 |
old |
64/16/1 |
|
ss2 |
v7 |
old |
64/32/1 |
|
ss20 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss20/151 |
v8 |
hyper |
512/64/1 |
|
ss20/152 |
v8 |
hyper |
512/64/1 |
|
ss20/50 |
v8 |
super |
16/32/4 |
|
ss20/502 |
v8 |
super |
16/32/4 |
|
ss20/51 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss20/512 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss20/514 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss20/61 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss20/612 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss20/71 |
v8 |
super2 |
16/32/4:1024/32/1 |
|
ss20/712 |
v8 |
super2 |
16/32/4:1024/32/1 |
|
ss20/hs11 |
v8 |
hyper |
256/64/1 |
|
ss20/hs12 |
v8 |
hyper |
256/64/1 |
|
ss20/hs14 |
v8 |
hyper |
256/64/1 |
|
ss20/hs21 |
v8 |
hyper |
256/64/1 |
|
ss20/hs22 |
v8 |
hyper |
256/64/1 |
|
ss2p |
v7 |
powerup |
64/32/1 |
|
ss4 |
v8a |
micro2 |
8/16/1 |
|
ss4/110 |
v8a |
micro2 |
8/16/1 |
|
ss4/85 |
v8a |
micro2 |
8/16/1 |
|
ss5 |
v8a |
micro2 |
8/16/1 |
|
ss5/110 |
v8a |
micro2 |
8/16/1 |
|
ss5/85 |
v8a |
micro2 |
8/16/1 |
|
ss600/120 |
v7 |
old |
64/32/1 |
|
ss600/140 |
v7 |
old |
64/32/1 |
|
ss600/41 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss600/412 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss600/51 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss600/512 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss600/514 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss600/61 |
v8 |
super |
16/32/4:1024/32/1 |
|
ss600/612 |
v8 |
super |
16/32/4:1024/32/1 |
|
sselc |
v7 |
old |
64/32/1 |
|
ssipc |
v7 |
old |
64/16/1 |
|
ssipx |
v7 |
old |
64/32/1 |
|
sslc |
v8a |
micro |
2/16/1 |
|
sslt |
v7 |
old |
64/32/1 |
|
sslx |
v8a |
micro |
2/16/1 |
|
sslx2 |
v8a |
micro2 |
8/16/1 |
|
ssslc |
v7 |
old |
64/16/1 |
|
ssvyger |
v8a |
micro2 |
8/16/1 |
|
sun4/110 |
v7 |
old |
2/16/1 |
|
sun4/15 |
v8a |
micro |
2/16/1 |
|
sun4/150 |
v7 |
old |
2/16/1 |
|
sun4/20 |
v7 |
old |
64/16/1 |
|
sun4/25 |
v7 |
old |
64/32/1 |
|
sun4/260 |
v7 |
old |
128/16/1 |
|
sun4/280 |
v7 |
old |
128/16/1 |
|
sun4/30 |
v8a |
micro |
2/16/1 |
|
sun4/330 |
v7 |
old |
128/16/1 |
|
sun4/370 |
v7 |
old |
128/16/1 |
|
sun4/390 |
v7 |
old |
128/16/1 |
|
sun4/40 |
v7 |
old |
64/16/1 |
|
sun4/470 |
v7 |
old |
128/32/1 |
|
sun4/490 |
v7 |
old |
128/32/1 |
|
sun4/50 |
v7 |
old |
64/32/1 |
|
sun4/60 |
v7 |
old |
64/16/1 |
|
sun4/630 |
v7 |
old |
64/32/1 |
|
sun4/65 |
v7 |
old |
64/16/1 |
|
sun4/670 |
v7 |
old |
64/32/1 |
|
sun4/690 |
v7 |
old |
64/32/1 |
|
sun4/75 |
v7 |
old |
64/32/1 |
|
ultra |
v8plusa |
ultra |
16/32/1:512/64/1 |
|
ultra1/140 |
v8plusa |
ultra |
16/32/1:512/64/1 |
|
ultra1/170 |
v8plusa |
ultra |
16/32/1:512/64/1 |
|
ultra1/200 |
v8plusa |
ultra |
16/32/1:512/64/1 |
|
ultra2 |
v8plusa |
ultra2 |
16/32/1:512/64/1 |
|
ultra2/1170 |
v8plusa |
ultra |
16/32/1:512/64/1 |
|
ultra2/1200 |
v8plusa |
ultra |
16/32/1:1024/64/1 |
|
ultra2/1300 |
v8plusa |
ultra2 |
16/32/1:2048/64/1 |
|
ultra2/2170 |
v8plusa |
ultra |
16/32/1:512/64/1 |
|
ultra2/2200 |
v8plusa |
ultra |
16/32/1:1024/64/1 |
|
ultra2/2300 |
v8plusa |
ultra2 |
16/32/1:2048/64/1 |
|
ultra2e |
v8plusa |
ultra2e |
16/32/1:256/64/4 |
|
ultra2i |
v8plusa |
ultra2i |
16/32/1:512/64/1 |
|
ultra3 |
v8plusa |
ultra3 |
64/32/4:8192/512/1 |
|
ultra3cu |
v8plusa |
ultra3cu |
64/32/4:8192/512/2 |
|
ultra3i |
v8plusa |
ultra3i |
64/32/4:1024/64/4 |
|
ultra4 |
v8plusa |
ultra4 |
64/32/4:8192/128/2 |
|
ultra4plus |
v8plusa |
ultra4plus |
64/32/4:2048/64/4:32768/64/4 |
|
ultraT1 |
v8plusa |
ultraT1 |
8/16/4/4:3072/64/12/32 |
|
ultraT2 |
sparcvis2 |
ultraT2 |
8/16/4:4096/64/16 |
|
ultraT2plus |
sparcvis2 |
ultraT2plus |
8/16/4:4096/64/16 |
|
sparc64vi |
sparcfmaf |
sparc64vi |
128/64/2:5120/64/10 |
|
sparc64vii |
sparcima |
sparc64vii |
64/64/2:5120/256/10 |
|
See A.2.114 –xcache=c for more information on the cache properties of the UltraSPARC IVplus, UltraSPARC T1, and UltraSPARC T2 chips. |
|||
-xtarget Values on x86 Platforms
Compiling for 64-bit Solaris software on 64-bit x86 platforms is indicated by the -m64 option. If you specify -xtarget with a flag other than native64 or generic64, you must also specify the -m64 option as follows: -xtarget=opteron ... -m64 otherwise the compiler uses a 32-bit memory model.
Table A–49 -xtarget Values on x86 Platforms|
-xtarget= |
-xarch |
-xchip |
-xcache |
|---|---|---|---|
|
generic |
generic |
generic |
generic |
|
opteron |
sse2 |
opteron |
64/64/2:1024/64/16 |
|
386 |
pentium |
generic |
|
|
pentium_pro |
pentium_pro |
pentium_pro |
generic |
|
pentium3 |
sse |
pentium3 |
16/32/4:256/32/4 |
|
pentium4 |
sse2 |
pentium4 |
8/64/4:256/128/8 |
|
nehalem |
sse4_2 |
nehalem |
32/64/8:256/64/8: 8192/64/16 |
|
penryn |
sse4_1 |
penryn |
2/64/8:4096/64/16 |
|
woodcrest |
ssse3 |
core2 |
32/64/8:4096/64/16 |
|
barcelona |
amdsse4a |
amdfam10 |
64/64/2:512/64/16 |
Defaults
On both SPARC and x86 devices, if –xtarget is not specified, –xtarget=generic is assumed.
Expansions
The –xtarget option is a macro that permits a quick and easy specification of the -xarch, –xchip, and –xcache combinations that occur on commercially purchased platforms. The only meaning of –xtarget is in its expansion.
Examples
-xtarget=sun4/15 means -xarch=v8a -xchip=micro -xcache=2/16/1.
Interactions
Compilation for SPARC V9 architecture indicated by the -xarch=v9|v9a|v9b option. Setting –xtarget=ultra or ultra2 is not necessary or sufficient. If -xtarget is specified, the -xarch=v9, v9a, or v9b option must appear after the -xtarget. For example:
-xarch=v9 -xtarget=ultra |
expands to the following and reverts the -xarch value to v8.
-xarch=v9 -xarch=v8 -xchip=ultra -xcache=16/32/1:512/64/1 |
The correct method is to specify -xarch after -xtarget. For example:
–xtarget=ultra -xarch=v9 |
Warnings
When you compile and link in separate steps, you must use the same -xtarget settings in the compile step and the link step.
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